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Article: Effect of acid etching time on bond strength of an etch-and-rinse adhesive to primary tooth dentine affected by amelogenesis imperfecta

TitleEffect of acid etching time on bond strength of an etch-and-rinse adhesive to primary tooth dentine affected by amelogenesis imperfecta
Authors
Issue Date2008
PublisherWiley-Blackwell Publishing Ltd.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0960-7439
Citation
International Journal Of Paediatric Dentistry, 2008, v. 18 n. 3, p. 224-230 How to Cite?
AbstractBackground. Dentine affected by amelogenesis imperfecta (AI) is histologically altered following loss of the hypoplastic enamel and becomes hypermineralized, which would make bonding less predictable. Aim. This study examined the effect of etching time on the microtensile bond strength (μTBS) to AI-affected primary dentine. Design. Flat coronal dentine surface was obtained from extracted AI-affected and noncarious primary molars. Teeth were etched either for 15 or for 30 s using 34% phosphoric acid. Prime & Bond® NT™ (Dentsply De Trey), an etch-and-rinse adhesive, was applied to dentine surfaces, air-dried and light-cured, followed by composite build-ups. The bonded teeth were sectioned into beams of 0.8 mm2 and stressed to failure under tension. Representative fractured beams from each group were examined under scanning electron microscopy. Results. The extended etching time had an adverse effect on the μTBS for the normal dentine, while no significant difference was found for AI-affected dentine. When the AI-affected dentine was etched for 30 s, the fracture occurred in the demineralized dentine at the base of the hybrid layer. Conclusion. Bonding to AI-affected dentine compromised the bonding of the etch-and-rinse adhesive. The bonding could not be improved by increasing etching time. © 2008 BSPD, IAPD and Blackwell Publishing Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/65880
ISSN
2015 Impact Factor: 1.303
2015 SCImago Journal Rankings: 0.721
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHiraishi, Nen_HK
dc.contributor.authorYiu, CKYen_HK
dc.contributor.authorKing, NMen_HK
dc.date.accessioned2010-09-06T05:41:46Z-
dc.date.available2010-09-06T05:41:46Z-
dc.date.issued2008en_HK
dc.identifier.citationInternational Journal Of Paediatric Dentistry, 2008, v. 18 n. 3, p. 224-230en_HK
dc.identifier.issn0960-7439en_HK
dc.identifier.urihttp://hdl.handle.net/10722/65880-
dc.description.abstractBackground. Dentine affected by amelogenesis imperfecta (AI) is histologically altered following loss of the hypoplastic enamel and becomes hypermineralized, which would make bonding less predictable. Aim. This study examined the effect of etching time on the microtensile bond strength (μTBS) to AI-affected primary dentine. Design. Flat coronal dentine surface was obtained from extracted AI-affected and noncarious primary molars. Teeth were etched either for 15 or for 30 s using 34% phosphoric acid. Prime & Bond® NT™ (Dentsply De Trey), an etch-and-rinse adhesive, was applied to dentine surfaces, air-dried and light-cured, followed by composite build-ups. The bonded teeth were sectioned into beams of 0.8 mm2 and stressed to failure under tension. Representative fractured beams from each group were examined under scanning electron microscopy. Results. The extended etching time had an adverse effect on the μTBS for the normal dentine, while no significant difference was found for AI-affected dentine. When the AI-affected dentine was etched for 30 s, the fracture occurred in the demineralized dentine at the base of the hybrid layer. Conclusion. Bonding to AI-affected dentine compromised the bonding of the etch-and-rinse adhesive. The bonding could not be improved by increasing etching time. © 2008 BSPD, IAPD and Blackwell Publishing Ltd.en_HK
dc.languageengen_HK
dc.publisherWiley-Blackwell Publishing Ltd.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0960-7439en_HK
dc.relation.ispartofInternational Journal of Paediatric Dentistryen_HK
dc.subject.meshAcid Etching, Dental - methodsen_HK
dc.subject.meshAmelogenesis Imperfecta - pathologyen_HK
dc.subject.meshChilden_HK
dc.subject.meshDental Bonding - methodsen_HK
dc.subject.meshDental Care for Chronically Illen_HK
dc.subject.meshDental Restoration, Permanent - methodsen_HK
dc.subject.meshDental Stress Analysisen_HK
dc.subject.meshDentin - abnormalities - drug effectsen_HK
dc.subject.meshDentin-Bonding Agents - chemistryen_HK
dc.subject.meshDentition, Primaryen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMaleen_HK
dc.subject.meshMolaren_HK
dc.subject.meshPolymethacrylic Acids - chemistryen_HK
dc.subject.meshSurface Propertiesen_HK
dc.subject.meshTensile Strengthen_HK
dc.subject.meshTime Factorsen_HK
dc.titleEffect of acid etching time on bond strength of an etch-and-rinse adhesive to primary tooth dentine affected by amelogenesis imperfectaen_HK
dc.typeArticleen_HK
dc.identifier.emailYiu, CKY: ckyyiu@hkucc.hku.hken_HK
dc.identifier.emailKing, NM: hhdbknm@hkucc.hku.hken_HK
dc.identifier.authorityYiu, CKY=rp00018en_HK
dc.identifier.authorityKing, NM=rp00006en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1365-263X.2007.00909.xen_HK
dc.identifier.pmid18341565-
dc.identifier.scopuseid_2-s2.0-41649090795en_HK
dc.identifier.hkuros141914en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-41649090795&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume18en_HK
dc.identifier.issue3en_HK
dc.identifier.spage224en_HK
dc.identifier.epage230en_HK
dc.identifier.isiWOS:000254612600009-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridHiraishi, N=8925934400en_HK
dc.identifier.scopusauthoridYiu, CKY=7007115156en_HK
dc.identifier.scopusauthoridKing, NM=7201762850en_HK
dc.identifier.citeulike2631899-

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